Floor or ceiling plate for pipes.



No. 788,625. PATENTED MAY 2, 1905. G. C. BLAGKMORE.

- FLOOR OR CEILING PLATE FOR PIPES.

APPLICATION rum) MAY 4, 1903.

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No. 788,625. PATENTED MAY 2, 1905.

G. c. BLAGKMORE.

FLOOR OR CEILING PLATE FOR PIPES. APPLICATION FILED MAY 4. 1903.

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NiTnn STATES Patented, May 2, 1905.

PATnNT OFFICE.

FLOOR OR CElLiNG PLATE FOR PlFES.

SPECIFICATION forming part of Letters Patent No. 788,625, dated May 2, 1905.

Application filed May i, 1903. Serial No. 156.517.

To all whom, it may concern:

Be it known that I, Gnonen (J. BLAGKMORE, a citizen of the United States, residing at 819 Sherriden avenue, Pittsburg, county of Allegheny, State of Pennsylvania, have invented certain new and useful Improvements in Floor or Ceiling Plates for Pipes, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

The object of the present invention to furnish a floor and ceiling plate in two sections to be readily placed about the pipe, and such sections having at opposite sides, respectively, a hinge-joint and spring locking device, the whole adapted to be formed by casting each section in a single piece.

The invention comprises a ceiling plate formed in two members or halves and having a pair of lugs at one side thereof constituting a hinge-joint, a pair of lugs at the other side serving as a latch-joint to lock the members together against the spring of the metal, and means for producing a strain within the members when locked transverse to the plane thereof comprising a pair of coacting parts located adjacent to the hinge-joint and between said joint and latch.

The construction will be understood by reference to the annexed drawings, in which- Figure 1 is a plan of the complete ceilingpl'ate. Fig. 2 is a section on line 2 2 in Fig. 1. Fig. 3 shows the under side oi the plate at the hinge-joint; Fig. at, the under side of the end which carries the engaging hook; Fig. 5, the under side of the end having the slot (Z and peripheral notch to engage such hook; Fig. 6, the under side of the plate at the locking-lugs; Fig. 7, a section of said lugs as they appear when engaged, the section being taken on line 7 7 in Fig. 6. Fig. 8 is a section of said lugs with the lugs pressed into position just prior to engagement. Fig. 9 shows the ceiling-plate sections in position to engage the hook a with the notch g by turning the sections into the operative position shown in Fig. 1. Fig. 10 is an edge view of the sections A and B looking toward the lugs /L- and o' as they are held in an inoperative position by the operation of the opposite h'inge joint. Fig. 11 is a section through the lugs (b c transverse to the line 2 2 in Fig. 1 looking from the interior of the sections toward the flange D. Fig. 12 is an edge View of the sections looking toward the outer side of the hinge-joint.

A designates one section of the plate, and B the opposite section, the sections being formed to furnish the plate with a flange (3 around the central aperture to lit against the pipe and with a peripheral flange D projected in the opposite direction to iit against the floor or ceiling.

The hinge-joint of the sections is formed of an upper lug a upon the section B, which is fitted to a recess in the upper side of the section A, so as to lie flush therewith.

The section A is provided with a lug c, which forms the bottom 01" such recess. The lug c is formed with an open slot (Z, extended inward from its outer end, and the flange D adjacent to such slot is formed with a notch g. The upper lug a is formed with a book 0, attached by a shank f, which is adapted to slide into the slot (Z when the sections are to be secured upon a pipe, the book (1 at such time being turned in line with the slot (Z, as shown in Figs. 5 and 9. These parts form a detachable hingc-joint, and the parts are so proportioned that the lug c operates in connection with the opposed face of the lug (1 which lies above it, as shown in Fig. 2, to produce a strain within the members which throws the lugs at the opposite sides of the sections out of the locking position.

The latch-joint of the sections is formed oi an upper lug it upon the section A, which is fitted to a recess in the upper side of the section B, so as to lie flush therewith.

The section B is provided with a lug 7 which forms the bottom of such recess. The upper lug It has a beveled stud Z: upon the under side, and the lower lug 11 has a central socket adapted to lit such stud.

To engage the stud with the socket, the lug 7t must be pressed above the lug vi, as shown in Fig. 8, so that the stud can he slid into the socket; but the normal strain within the members operates transversely to their plane and throws them out of the locking position when disengaged, as illustrated in Fig. 10.

To engage the locking-lugs It and 1. the lug i must be pressed below the lug It, as shown in Fig. 8, in opposition to the transverse strain, and such strain thereafter operates to hold the stud l3 firmly in the socket j, and thus holds the lugs locked when fully engaged, as shown in Fig. 7.

The lugs can be unlocked at any time by pressing them apart sufficiently to disengage the stud from the socket and then slipping the lugs apart laterally, as shown in Fig. 8, which may indicate the position of the lugs before or after the stud is engaged with the socket.

The hook e where it contacts with the bottom of the notch g forms a fulcrum for the transverse strain, and the lugs 0 and a Where they lie between the hinge-joint and the latch formed by the locking-lugs 7L and z'are the coacting parts which produce the transverse strain when the locking-lugs are engaged with one another.

The elasticity of the parts is secured, although they are formed of iron, by making the castings sufficiently thin, and the degree of transverse strain produced by such parts is readily modified by filing the point where the hook e engages the notch g. The lockinglugs are thus adapted to be sprung into their engaging position, as shown in Fig. 8, and held securely in their locked position, as shown in Fig. 7.

Having thus set forth the nature of the invention, what is claimed herein is- 1. The sectional floor and ceiling plate formed with the sections A, B, having their ends overlapped, the ends at one side of the plate having respectively the lug a provided with the hook e, and with the lug 0 having the open slot d, and the section A being pro vided adjacent to the said slot with the notch gto engage the point of the hook, and the ends at the opposite side of the plate having the lugs h and 2' held out of their normal position by the opposed faces of the lugs a and 0, upon the engagement of the hook a with the notch g, and the faces of the lugs 72 and 0' having means for locking them together elastically when the lugs are overlapped, whereby the sections are detachably hinged together and may be locked upon the pipe by springing their free ends into engagement, substantially as herein set forth.

2. The sectional floor and ceiling plate formed with the sections A, B, having their ends overlapped, the ends at one side of the plate having respectively the lug a, provided with the hook e, and with the lug 0 having the open slot (Z, and the section A being provided adjacent to the said slot with the notch g to engage the point of the hook, and the ends at the opposite side of the plate having the lugs h and i held out of their normal position by the opposed faces of the lugs a and 0, upon the engagement of the hook 6 with the notch and the lugs h and i being provided respectively with the beveled stud 7tand the socket j, the stud being adapted to engage such socket when the lugs are overlapped, substantially as herein set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

GEORGE O. BLAGKMORE.

Witnesses:

A. M. DICK, J. Q. ROBINSON. 

